Sarcasm noted.
For some "strange" reason, when cops get shot during a dynamic entry, they frequently abandon the dynamic entry and establish a siege. If the dynamic entries were being conducted to protect officers' safety, such a policy would make no sense. If it's necessary to conduct a dynamic entry in case the occupants are hostile, shouldn't such tactics be ramped up if actual hostility exists?
The conclusion I draw from the cops' behavior is that cops justify dynamic raids by claiming suspects are dangerous, they are more prone to conduct dynamic entries in those cases where they think they can do so safely, i.e. where the suspects aren't dangerous, than in cases where the suspects actually are dangerous.
Why do you think you never hear about “dynamic entry” being used on gang’s houses?